What is the effect on the graph of f(x) if it is changed to f(x)+7, f(x+7) or 7f(x)​

Which table represents a linear function? i'll give brainliest to first answer ^'^

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take